Release v20.42.1

Fixed

• Read-model–dependent command validators now resolve through the command pipeline instead of failing with "No service for type … has been registered". A CommandValidator can take a read model, projection, or other service as a constructor dependency — resolved for the command's event source id — exactly like the command handler and Provide method.

Changed

• Documentation: corrected Result<,> type-parameter order to Result<TSuccess, TError> across the command, validation, authorization, and scenario examples.